What does this biological approach of aggression encompass?

What kind of question does this bring about?

What is one way to see whether aggression runs is a genetic trait?

What is the difference between monozygotic and dizygotic twins?

What do researchers do in twin studies?

What does it mean if MZ twins are more alike in terms of their aggressive behaviour?

What have most twin studies focused on?

What did one of the few studies like one by Coccaro et al (1997) study?

What did they find?

How can adoption studies help us to see whether aggression is genetic?

What happens if a positive correlation is found between aggressive behaviour in adopted children and aggressive behaviour in their biological parents?

What happens if a positive correlation is found between aggressive behaviour in the adoptee and the aggressive behaviour in the rearing family?

What did Hutchings and Mednick (1975) do?

What did they find?

What does this provide evidence for?

Is there a gene for aggression?

What is there?

What does MAOA do?

In the 1980's what did a study of a Dutch family find?

What was it discovered that these men had?

Who provided this study and its findings as a means of demonstrating the role of genetic factors in aggressive behaviour?

What did Caspi et al (2002) do?

What did they link?

What did their study involve?

What did the researchers discover?

What were those with low levels of MAOA more likely to exhibit?

Which children did not display antisocial behaviour?

What does this show?

Who provided research support for the genetic basis of aggression?

What did they do?

What had most studies relied on?

What did the results suggest?

What was notably important?

Who conducted a later meta-analysis?

What did they do?

What did they also conclude?

What did both meta-analyses have in common?

What does this suggest?

What have many of the studies in this area focused on?

What is the first problem that arises when trying to draw meaningful conclusions from these studies?

What does this mean?

What is the second problem?

What might this explain?

What is another limitation?

Why is this difficult?

What is a problem with assessing aggression?

What did Miles and Careys' meta analysis that was described previously find?

What did they find about the studies that used parental or self-report techniques?

What did observational studies show?

Why is animal research valuable?

What may manipulations involve?

What is an example of a study that has potential for an understanding of human aggression?

What did the researchers claim?

What effects did the mutation nicknamed 'fierce' have on mice?

How is this relevant to human aggression?

What is the real world application?

What do some people suggest?

What do other people suggest?

What is characteristic of the conclusions made through research in this field?

What is important?